Hi all. Can somebody please help me? At my workplace we use a particular type/size of extruded aluminium section to build our frameworks. I have added various new length configurations of said section to the configuration table but have stupidly omitted checking the "Use in bill of materials" box when creating them. Is there any way of opening these various newly-added section lengths in order to check the "Use in bill of materials" box so that they will show up in a bill of materials when created? 

Many thanks all and have a great day.